PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/12-01:57:40
G02     267.3          81.0               10.2 +/-    0.58      10.3 +/-    0.58  0.030 / 0.040
G05     168.6          21.7               12.0 +/-    3.04      25.3 +/-    3.04  0.040 / 0.040
G06     39.9           53.4                9.5 +/-    0.90      11.5 +/-    0.90  0.110 / 0.210
G12     321.0          56.8                9.5 +/-    0.54      11.1 +/-    0.54  0.150 / 0.170
G17     73.3           22.9                7.5 +/-    1.32      15.3 +/-    1.32  0.120 / 0.210
G19     61.9           36.0                9.5 +/-    1.09      14.8 +/-    1.09  0.300 / 0.300
G24     240.2          31.7               10.5 +/-    1.64      17.8 +/-    1.64  0.100 / 0.100
G25     317.5          16.0                5.5 +/-    1.40      13.5 +/-    1.40  0.110 / 0.090